Today's front-page headlines from Marca, AS and Mundo Deportivo.
PSG is a challenge which should be accepted
Unai Emery: We'll see what the best thing is for the team and for Jese
UE: I want PSG to be more aggressive in attack
UE: Before Barca we have the challenge of doing a lot more
Real Madrid begin the year without Ramos - he still carries a niggling injury from Japan
Atletico sign the Uruguayan Sanabria - left-sided central midfielder, youth team captain, he must wait until FIFA ban lifted
Weigl offered to Madrid
Man City and Barca also interested in Borussia Dortmund midfielder
21 years old, 1.86m, German international, 'the new Busquets'
Jesus Vallejo: I strive every day of my life to play for Real Madrid
Trident return from holidays - Messi, Suarez and Neymar return after 3 free days
Atletico close 2016 with record number of socios - 96, 707
Voro, Valencia's cure for a 5th time - assumes manager role until June
'Being here is what I always wanted'
Ter Stegen goes into the new year with plenty of challenges and hopes to become Barcelona legend
Today sees Neymar, Messi, Suarez return to Barcelona training
New massacre in Istanbul - 39 dead
Prandelli leaves feeling fooled
Klopp wins over Pep, Mourinho defeats Karanka and Chelsea continue winning streak
